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             AUSCERT External Security Bulletin Redistribution

         Vulnerability in DNS Server Could Allow Denial of Service
                               14 March 2012


        AusCERT Security Bulletin Summary

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows Server 2003
                   Windows Server 2008
                   Windows Server 2008 R2
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-0006  

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Microsoft Security Bulletin MS12-017 - Important

Vulnerability in DNS Server Could Allow Denial of Service (2647170)

   Published: Tuesday, March 13, 2012

   Version: 1.0

General Information

Executive Summary

   This security update resolves a privately reported vulnerability in
   Microsoft Windows. The vulnerability could allow denial of service if a
   remote unauthenticated attacker sends a specially crafted DNS query to
   the target DNS server.

   This security update is rated Important for all supported editions of
   Windows Server 2003, 32-bit and x64-based editions of Windows Server
   2008, and x64-based editions of Windows Server 2008 R2. For more
   information, see the subsection, Affected Software, in this section.

Affected Software
   Windows Server 2003 Service Pack 2
   Windows Server 2003 x64 Edition Service Pack 2
   Windows Server 2003 with SP2 for Itanium-based Systems
   Windows Server 2008 for 32-bit Systems Service Pack 2
   Windows Server 2008 for x64-based Systems Service Pack 2
   Windows Server 2008 R2 for x64-based Systems
   Windows Server 2008 R2 for x64-based Systems Service Pack 1

Vulnerability Information

DNS Denial of Service Vulnerability - CVE-2012-0006

   A denial of service vulnerability exists in the way that the DNS server
   improperly handles objects in memory when looking up the resource
   record of a domain. An attacker that successfully exploited this
   vulnerability could cause the DNS server on the target system to stop
   responding and automatically restart.

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